EP0422000A1 - Process for gluing and soldering a metallic catalyst carrier. - Google Patents

Process for gluing and soldering a metallic catalyst carrier.

Info

Publication number
EP0422000A1
EP0422000A1 EP89902025A EP89902025A EP0422000A1 EP 0422000 A1 EP0422000 A1 EP 0422000A1 EP 89902025 A EP89902025 A EP 89902025A EP 89902025 A EP89902025 A EP 89902025A EP 0422000 A1 EP0422000 A1 EP 0422000A1
Authority
EP
European Patent Office
Prior art keywords
sheets
adhesive
binder
honeycomb body
structured
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP89902025A
Other languages
German (de)
French (fr)
Other versions
EP0422000B2 (en
EP0422000B1 (en
Inventor
Wolfgang Staubwasser
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Interatom Internationale Atomreaktorbau GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
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Application filed by Interatom Internationale Atomreaktorbau GmbH filed Critical Interatom Internationale Atomreaktorbau GmbH
Publication of EP0422000A1 publication Critical patent/EP0422000A1/en
Application granted granted Critical
Publication of EP0422000B1 publication Critical patent/EP0422000B1/en
Publication of EP0422000B2 publication Critical patent/EP0422000B2/en
Anticipated expiration legal-status Critical
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Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
    • F01N3/2807—Metal other than sintered metal
    • F01N3/281—Metallic honeycomb monoliths made of stacked or rolled sheets, foils or plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
    • B23K1/0014—Brazing of honeycomb sandwich structures
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1007—Running or continuous length work
    • Y10T156/1016—Transverse corrugating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1007—Running or continuous length work
    • Y10T156/1016—Transverse corrugating
    • Y10T156/1021—Treating material of corrugated lamina or dry adhesive thereon to render tacky
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1025—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina to form undulated to corrugated sheet and securing to base with parts of shaped areas out of contact

Definitions

  • the present invention relates to a method for gluing and soldering a metallic honeycomb body according to the preamble of claim 1 and a corresponding
  • Honeycomb bodies wound or layered from layers of structured sheet metal are known in various forms. They are particularly required for exhaust gas catalytic converters used in motor vehicles.
  • DE-OS-29 24 592 from which the present invention is based, such bodies and methods for gluing and soldering are described.
  • Further forms of catalyst support bodies for which the present invention is suitable are described, for example, in EP-B-0 136 515, EP-A-0 159 468, EP-A-0 220 468, EP-A- 0 »245 737 and EP-A-0 245 738 included.
  • the front gluing and soldering leads either z undesirably large amounts of solder in the gaps next to the contact points, or if pressure-sensitive adhesive is used, it takes an additional amount of time to dry the adhesive before solder powder is applied.
  • the subsequent soldering on the end face does not enable the selective soldering of individual strips in the interior of the honeycomb body. Dry soldering requires relatively complex devices and a certain composition of the solder with respect to the solder grains.
  • the object of the present invention is a method which avoids the disadvantages of the prior art and enables a rapid production process with high quality of the later soldered connections.
  • a suitable device for applying glue or binder is also to be created.
  • the procedure according to the invention enables, among other things, a particularly time-saving procedure.
  • the structured sheets While the structured sheets are being transported to a winding or layering machine, they can be provided with adhesive or binder in the desired areas. During winding or layering, this is fixed by capillary action in the gaps next to the connection points, so that later solder particles can adhere where they are needed.
  • a selective soldering of strips in the interior of the honeycomb body without soldering grains undesirably getting stuck between the contact surfaces becomes possible for the first time. Soldering only strips on one or both faces is also simplified.
  • the method is particularly favorable when using pressure sensitive adhesive.
  • EP-C-0 049 489 describes in detail the advantages of using pressure sensitive adhesive in relation to the metering of the amount of solder.
  • the drying time of the pressure sensitive adhesive coincides with the time for winding or layering the honeycomb body, so that the process is simplified.
  • the advantages of using pressure-sensitive adhesive are achieved, the disadvantages that could arise in the known method due to solder grains between the connection points of the sheets are not accepted.
  • the method according to the invention also makes it possible, while maintaining the advantages of face soldering after de winding or layers, only selectively
  • the application of adhesive or binder can take place, for example, by sponge-like rollers soaked with adhesive or binder, which are arranged laterally next to and / or above and / or below the transport path of the structured sheets. These rollers can touch the structured sheets in the desired partial areas and thereby glue them in strips and / or on the crests of the corrugations.
  • Such sponge-like rollers can be arranged freely, so that they are set in rotation by the passing sheet metal during gluing, which ensures a uniform supply of adhesive or binder and, due to a certain unavoidable slippage between rollers and sheets, uniform layer thicknesses of adhesive or binder can be achieved.
  • FIG. 1 shows a spirally wound catalyst carrier body during the winding process
  • Figure 2 schematically shows a device for applying adhesive or binder.
  • Figure 1 shows a spirally wound
  • Catalyst carrier body 8 made of smooth 1 and corrugated sheets 2 shortly before the end of the winding process.
  • a honeycomb body has a plurality of channels 9 which are permeable to a fluid.
  • gluing can take place, for example, on the smooth sheet metal 1 in edge regions 3, 4, but it can also relate to strips 5 in the interior of the honeycomb body 8 to be wound.
  • Gluing of the corrugated sheet 2 can also be advantageous, although there are also many possibilities here.
  • the adhesive or binder is preferably applied only to the crests of the corrugations. This can go over the entire width of the sheet, as illustrated by the glued area 6.
  • Figure 2 shows schematically a device for applying glue or binder, namely in the present
  • rollers 11, 12 are mounted at such a distance that a smooth 1 or corrugated 2 sheet passed between the two rollers is pressed into the sponge-like rollers 11, 12 on both sides by a few millimeters.
  • the rollers 11, 12 are arranged in housings 13, 14 which have openings 15, 16 for the passage of the sheets 1, 2.
  • a supply 17 of adhesive or binder can be present in the interior of the housings 13, 14, for example.
  • the housings 13, 14 are mounted on brackets 18, which in turn are fastened in elongated holes in the structure plate 10, for example with wing screws 19. This enables simple adjustment to different widths of the sheets 1, 2.
  • the rollers 11, 12 are rotatably mounted and can either be driven by yourself or be rotated by the sheet metal that is carried out.
  • this device enables a strip-wise gluing of the edges of smooth sheets or the strip-wise gluing of the tips of corrugated sheets in the edge area.
  • the present invention is particularly suitable for the production of thermally highly stressed metallic catalyst carrier bodies which are to be used close to the engine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Catalysts (AREA)

Abstract

Un procédé et un dispositif servent à encoller et à souder un corps en nid d'abeilles (8) composé de couches de tôles structurées (1, 2) enroulées ou superposées et contenant de nombreux canaux (9) d'écoulement d'un fluide. Afin d'obtenir des soudures de haute résistance, on enduit les tôles, avant de les enrouler ou de les superposer, d'un adhésif ou d'un liant, de préférence d'une émulsion auto-adhésive, que l'on applique sur les régions à souder (3; 4; 5; 6; 7). Puis on enroule ou on superpose les tôles de façon à former le corps en nid d'abeilles (8) et ce n'est qu'ensuite qu'on applique la poudre de brasage sur le corps (8). Ce procédé permet de raccourcir le temps de fabrication, étant donné par exemple que des temps de séchage supplémentaires de l'émulsion auto-adhésive deviennent superflus, et permet d'obtenir des soudures de haute qualité, étant donné que des grains de brasage ne peuvent pas se déposer entre les points de contact des tôles. On peut toutefois obtenir des soudures sélectives à l'intérieur du corps en nid d'abeilles. On peut ainsi obtenir des soudures de haute qualité, telles celles requises pour des catalyseurs de démarrage montés à proximité du moteur dans des véhicules à moteur.A method and a device serve to glue and weld a honeycomb body (8) composed of layers of structured sheets (1, 2) wound or superposed and containing numerous channels (9) for the flow of a fluid . In order to obtain high strength welds, the sheets are coated, before winding or superimposing them, with an adhesive or a binder, preferably a self-adhesive emulsion, which is applied to the regions to be welded (3; 4; 5; 6; 7). Then the sheets are wound or superimposed so as to form the honeycomb body (8) and it is only then that the brazing powder is applied to the body (8). This process shortens the manufacturing time, since, for example, additional drying times of the self-adhesive emulsion become superfluous, and makes it possible to obtain high quality welds, since brazing grains cannot not settle between the points of contact of the sheets. However, selective welds can be obtained inside the honeycomb body. It is thus possible to obtain high quality welds, such as those required for starting catalysts mounted near the engine in motor vehicles.

Description

A A
Verfahren zum Beleimeπ und Beloten eines metallischen Katalysator-Trägerkörpers und zugehörige VorrichtungMethod for gluing and soldering a metallic catalyst carrier body and associated device
Die vorliegende Erfindung betrifft ein Verfahren zum Beleimen und Beloten eines metallischen Wabenkörpers gemäß dem Oberbegriff des Anspruchs 1 sowie eine entsprechendeThe present invention relates to a method for gluing and soldering a metallic honeycomb body according to the preamble of claim 1 and a corresponding
Vorrichtung zum Auftragen von Kleber oder Binder gemäß dem Oberbegriff des Anspruchs 9.Device for applying adhesive or binder according to the preamble of claim 9.
Aus Lagen strukturierter Bleche gewickelte oder geschichtete Wabenkörper sind in vielfältigen Formen bekannt. Sie werden besonders für motornah eingesetzte Abgaskatalysatoren bei Kraftfahrzeugen benötigt. In der DE-OS-29 24 592, von der die vorliegende Erfindung ausgeht, sind solche Körper und Verfahre zum Beleimen und Beloten beschrieben. Weitere Formen von Katalysator-Trägerkörpern, für die die vorliegende Erfindung geeignet ist, sind beispielsweise in der EP-B-0 136 515, der EP-A-0 159 468, der EP-A-0 220 468, der EP-A-0» 245 737 und der EP-A-0 245 738 enthalten.Honeycomb bodies wound or layered from layers of structured sheet metal are known in various forms. They are particularly required for exhaust gas catalytic converters used in motor vehicles. In DE-OS-29 24 592, from which the present invention is based, such bodies and methods for gluing and soldering are described. Further forms of catalyst support bodies for which the present invention is suitable are described, for example, in EP-B-0 136 515, EP-A-0 159 468, EP-A-0 220 468, EP-A- 0 »245 737 and EP-A-0 245 738 included.
Nach dem Stand der Technik gibt es bisher mindestens drei Verfahren zum Beloten von Wabenkörpern, nämlich einerseits Beleimen und Beloten vor dem Wickeln gemäß der DE-OS-29 24 592 weiter das stirnseitige Beleimen und Beloten nach dem Wickeln, welches ebenfalls in dieser Schrift beschrieben ist, und das trockene Beloten ohne die Verwendung von Klebern und Bindern gemäß EP-A-0 136 514. Alle drei Arten eignen sich prinzipiell, haben jedoch verschiedene Nachteile. Beim Beloten vor dem Wickeln oder Schichten liegen Lotkörner zwischen den einzelnen Blechlagen, so daß beim Aufschmelzen der Lotkörner unerwünscht Abstände und Verschiebungen der Bleche untereinander auftreten können. Das stirnseitige Beleimen und Beloten führt entweder z unerwünscht großen Lotmengen in den Spalten neben den Berühruπgsstellen oder es benötigt bei der Verwendung von Haftkleber eine zusätzliche Zeitspanne zum Trocknen des Klebers, bevor Lotpulver aufgebracht wird. Außerdem ermöglicht das nachträgliche stirnseitige Beloten nicht die selektive Verlötuπg einzelner Streifen im Inneren des Wabenkörpers. Das trockene Beloten erfordert relativ aufwendige Vorrichtungen und eine bestimmte Zusammensetzung des Lotes in bezug auf die Lotkörner.According to the prior art, there are at least three methods for soldering honeycomb bodies, namely gluing and soldering before winding according to DE-OS-29 24 592, furthermore the front gluing and soldering after winding, which is also described in this document , and dry soldering without the use of adhesives and binders according to EP-A-0 136 514. All three types are suitable in principle, but have different disadvantages. When soldering before winding or layering, there are solder grains between the individual sheet layers, so that undesirable gaps and displacements between the sheets can occur when the solder grains are melted. The front gluing and soldering leads either z undesirably large amounts of solder in the gaps next to the contact points, or if pressure-sensitive adhesive is used, it takes an additional amount of time to dry the adhesive before solder powder is applied. In addition, the subsequent soldering on the end face does not enable the selective soldering of individual strips in the interior of the honeycomb body. Dry soldering requires relatively complex devices and a certain composition of the solder with respect to the solder grains.
Aufgabe der vorliegenden Erfindung ist ein Verfahren, welches die genannten Nachteile des Standes der Technik vermeidet und einen schnellen Fertigungsablauf bei hoher Qualität der späteren Lötverbindungen ermöglicht. Weiter soll eine geeignete Vorrichtung zum Auftragen von Kleber oder Binder geschaffen werden.The object of the present invention is a method which avoids the disadvantages of the prior art and enables a rapid production process with high quality of the later soldered connections. A suitable device for applying glue or binder is also to be created.
Zur Lösung dieser Aufgabe wird ein Verfahren mit den kennzeichnenden Merkmalen des Anspruchs 1 vorgeschlagen. Vorteilhafte Ausgestaltungen des Verfahrens sind in den Unteransprüchen 2 bis 8 angegeben.To achieve this object, a method with the characterizing features of claim 1 is proposed. Advantageous refinements of the method are specified in subclaims 2 to 8.
Die erfindungsgemäße Vorgehensweise ermöglicht unter anderem einen besonders zeitsparenden Verfahrensablauf. Während des Transportes der strukturierten Bleche zu einer Wickel- oder Schichtmaschine können diese in den gewünschten Bereichen mit Kleber oder Binder versehen werden. Dieser setzt sich beim Wickeln oder Schichten durch Kapillarwirkung gerade in den Spalten neben den Verbindungsstellen fest, so daß später gerade dort Lotkörner haften können, wo diese auch benötigt werden. Eine selektive Belotung von Streifen im Inneren des Wabenkörpers, ohne daß Lotkörner sich unerwünscht zwischen die Berührungsflächen klemmen, wird erstmals möglich. Auch das Beloten von nur stirnseitigen Streifen auf einer oder beiden Stirnseiten wird vereinfacht. Besonders günstig ist das Verfahren bei der Verwendung von Haftkleber. Aus der EP-C-0 049 489 sind die Vorteile einer Verwendung von Haftkleber in bezug auf die Dosierung der Lotmenge eingehend beschrieben. Bei dem erfindungsgemäßen Verfahren fällt die Trocknungszeit des Haftklebers mit der Zei für das Wickeln oder Schichten des Wabenkörpers zusammen, so daß der Ablauf vereinfacht wird. Außerdem werden zwar die Vorteile der Verwendung von Haftkleber erreicht, nicht jedoch die Nachteile in Kauf genommen, die bei dem bekannten Verfahre durch Lotkörner zwischen den Verbindungsstellen der Bleche entstehen konnten.The procedure according to the invention enables, among other things, a particularly time-saving procedure. While the structured sheets are being transported to a winding or layering machine, they can be provided with adhesive or binder in the desired areas. During winding or layering, this is fixed by capillary action in the gaps next to the connection points, so that later solder particles can adhere where they are needed. A selective soldering of strips in the interior of the honeycomb body without soldering grains undesirably getting stuck between the contact surfaces becomes possible for the first time. Soldering only strips on one or both faces is also simplified. The method is particularly favorable when using pressure sensitive adhesive. EP-C-0 049 489 describes in detail the advantages of using pressure sensitive adhesive in relation to the metering of the amount of solder. In the method according to the invention, the drying time of the pressure sensitive adhesive coincides with the time for winding or layering the honeycomb body, so that the process is simplified. In addition, although the advantages of using pressure-sensitive adhesive are achieved, the disadvantages that could arise in the known method due to solder grains between the connection points of the sheets are not accepted.
Das erfindungsgemäße Verfahren ermöglicht es ferner, unter Beibehaltung der Vorteile einer stirnseitigen Belotung nach de Wickeln oder Schichten trotzdem nur selektiv dieThe method according to the invention also makes it possible, while maintaining the advantages of face soldering after de winding or layers, only selectively
Berührungsstellen zu beloten und nicht sämtliche Flächen in Stirnseitennähe. Dies kann erreicht werden, indem die gewellte Bleche nur auf ihren Kuppen streifenweise oder in kleinen Teilbereichen beleimt werden. Dies spart Lot und verringert da Risiko von späteren Erosionen im Betrieb durch Auflegiereπ des Grundmaterials mit dem Lot. Kombinationen des Beleimens von glatten und gewellten Blechen sind möglich.To touch points of contact and not all areas near the face. This can be achieved by gluing the corrugated sheets only in strips on their tips or in small areas. This saves solder and reduces the risk of later erosion during operation by coating the base material with the solder. Combinations of gluing smooth and corrugated sheets are possible.
Gemäß dem Anspruch 9 kann das Auftragen von Kleber oder Binder beispielsweise durch schwammartige mit Kleber oder Binder tränkbare Walzen erfolgen, welche seitlich neben und/oder über und/oder unter dem Transportweg der strukturierten Bleche angeordnet sind. Diese Walzen können die strukturierten Bleche in den gewünschten Teilbereichen berühren und sie dadurch streifenweise und/oder auf den Kuppen der Wellungen beleimen. Solche schwammartigen Walzen können freilaufend angeordnet werden, so daß sie durch das vorbeilaufende Blech beim Beleime in Rotation versetzt werden, wodurch eine gleichmäßige Versorgung mit Kleber oder Binder gewährleistet wird und durch einen gewissen unvermeidbaren Schlupf zwischen Walzen und Blechen gleichmäßige Schichtdicken von Kleber oder Binder erreicht werden.According to claim 9, the application of adhesive or binder can take place, for example, by sponge-like rollers soaked with adhesive or binder, which are arranged laterally next to and / or above and / or below the transport path of the structured sheets. These rollers can touch the structured sheets in the desired partial areas and thereby glue them in strips and / or on the crests of the corrugations. Such sponge-like rollers can be arranged freely, so that they are set in rotation by the passing sheet metal during gluing, which ensures a uniform supply of adhesive or binder and, due to a certain unavoidable slippage between rollers and sheets, uniform layer thicknesses of adhesive or binder can be achieved.
Die Erfindung wird anhand von Ausführungsbeispielen schematisch in der Zeichnung näher erläutert. Es zeigen Figur 1 einen spiralig gewickelten Katalysator-Trägerkörper während des Wickelvorganges undThe invention is schematically explained in more detail in the drawing using exemplary embodiments. FIG. 1 shows a spirally wound catalyst carrier body during the winding process and
Figur 2 schematisch eine Vorrichtung zum Auftragen von Kleber oder Binder.Figure 2 schematically shows a device for applying adhesive or binder.
Figur 1 zeigt einen spiralig gewickeltenFigure 1 shows a spirally wound
Katalysator-Trägerkörper 8 aus glatten 1 und gewellten Blechen 2 kurz vor dem Ende des Wickelvorganges. Ein solcher Wabenkörper weist eine Vielzahl von für ein Fluid durchlässigen Kanälen 9 auf. Anhand der noch nicht fertig aufgewickelten Teilstücke der Bleche 1, 2 werden verschiedene Möglichkeiten der Beleimung vor dem Wickeln veranschaulicht. Eine solche Beleimung kann beispielsweise auf dem glatten Blech 1 in Randbereichen 3, 4 erfolgen, sie kann jedoch auch Streifen 5 im Inneren des zu wickelnden Wabenkörpers 8 betreffen. Günstig kann auch eine Beleimung des gewellten Bleches 2 sein, wobei sich auch hier vielfältige Möglichkeiten bieten. Bevorzugt wird der Kleber oder Binder nur auf den Kuppen der Wellungen aufgetragen. Dies kann über die ganze Breite des Bleches gehen, wie der beleimte Bereich 6 veranschaulicht. Eine andere Möglichkeit ist, sämtliche oder in Abständen einige Kuppen im Randbereich des Bleches zu beloten, wie dies durch die Bereiche 7 veranschaulicht wird. Kombinationen der angegebenen Möglichkeiten können vorteilhaft sein. Das hier anhand eines spiralig gewickelten Katalysator-Trägerkörpers veranschaulichte Verfahren eignet sich auch für geschichtete Wabenkörper oder solche aus gegensinnig verschlungenen Blechstapeln, wie sie im Stand der Technik bekannt sind.Catalyst carrier body 8 made of smooth 1 and corrugated sheets 2 shortly before the end of the winding process. Such a honeycomb body has a plurality of channels 9 which are permeable to a fluid. On the basis of the parts of the sheets 1, 2 which have not yet been wound up, various possibilities for gluing before winding are illustrated. Such gluing can take place, for example, on the smooth sheet metal 1 in edge regions 3, 4, but it can also relate to strips 5 in the interior of the honeycomb body 8 to be wound. Gluing of the corrugated sheet 2 can also be advantageous, although there are also many possibilities here. The adhesive or binder is preferably applied only to the crests of the corrugations. This can go over the entire width of the sheet, as illustrated by the glued area 6. Another possibility is to solder all or some of the crests in the edge region of the sheet, as is illustrated by the regions 7. Combinations of the options given can be advantageous. The method illustrated here with the aid of a spirally wound catalyst carrier body is also suitable for layered honeycomb bodies or those made of sheet metal stacks which are intertwined in opposite directions, as are known in the prior art.
Figur 2 zeigt schematisch eine Vorrichtung zum Auftragen von Kleber oder Binder, und zwar im vorliegendenFigure 2 shows schematically a device for applying glue or binder, namely in the present
Ausführungsbeispiel für die seitliche Beleimung von glatten oder gewellten Blechbändern auf der Ober- und Unterseite. Auf einer Halteplatte 10 sind zwei schwammartige Walzen 11, 12 in einem solchen Abstand montiert, daß sich ein zwischen den beiden Walzen hindurchgeführtes glattes 1 oder gewelltes 2 Blech auf beiden Seiten um einige Millimeter in die schwammartigen Walzen 11, 12 eindrückt. Die Walzen 11, 12 sind in Gehäusen 13, 14 angeordnet, welche Öffnungen 15, 16 zur Durchführung der Bleche 1, 2 aufweisen. Im Inneren der Gehäuse 13, 14 kann beispielsweise ein Vorrat 17 an Kleber oder Binder vorhanden sein. Die Gehäuse 13, 14 sind auf Halterungen 18 montiert, welche ihrerseits in Langlöchern der Strukturplatte 10 befestigt sind, beispielsweise mit Flügelschrauben 19. Dies ermöglicht eine einfache Einstellung auf unterschiedliche Breiten der Bleche 1, 2. Die Walzen 11, 12 sind rotierbar gelagert und können entweder selbst angetrieben sein oder von den durchgeführten Blechen rotiert werden.Exemplary embodiment for the lateral gluing of smooth or corrugated metal strips on the top and bottom. On a holding plate 10, two sponge-like rollers 11, 12 are mounted at such a distance that a smooth 1 or corrugated 2 sheet passed between the two rollers is pressed into the sponge-like rollers 11, 12 on both sides by a few millimeters. The rollers 11, 12 are arranged in housings 13, 14 which have openings 15, 16 for the passage of the sheets 1, 2. In the interior of the housings 13, 14, for example, a supply 17 of adhesive or binder can be present. The housings 13, 14 are mounted on brackets 18, which in turn are fastened in elongated holes in the structure plate 10, for example with wing screws 19. This enables simple adjustment to different widths of the sheets 1, 2. The rollers 11, 12 are rotatably mounted and can either be driven by yourself or be rotated by the sheet metal that is carried out.
Je nach der Beschaffenheit der Walzen 11, 12 ermöglicht diese Vorrichtung ein streifenweises Beleimen der Ränder glatter Bleche oder das streifenweise Beleimen der Kuppen von gewellten Blechen im Randbereich.Depending on the nature of the rollers 11, 12, this device enables a strip-wise gluing of the edges of smooth sheets or the strip-wise gluing of the tips of corrugated sheets in the edge area.
Die vorliegende Erfindung eignet sich besonders für die Herstellung von thermisch hoch belasteten metallischen Katalysator-Trägerkörpern, die motornah eingesetzt werden sollen.The present invention is particularly suitable for the production of thermally highly stressed metallic catalyst carrier bodies which are to be used close to the engine.
9 Patentansprüche 2 FIG 9 claims 2 FIG

Claims

Patentansprüche Claims
1. Verfahren zum Beleimen und Beloten eines aus Lagen strukturierter Bleche (1, 2) gewickelten oder geschichteten Wabenkörpers (8) mit vielen für ein Fluid durchlässigen Kanälen (9), g e k e n n z e i c h n e t d u r c h folgende Merkmale: a) vor dem Wickeln oder Schichten werden die strukturierten Bleche (1, 2) in den später zu belotenden und zu verlötenden Bereichen (3; 4; 5; 6; 7) mit einem Kleber oder Binder beschichtet; b) die Bleche werden zu einem Wabenkörper (8) gewickelt oder geschichtet; c) der gewickelte oder geschichtete Körper (8) wird mit Lotpulver beaufschlagt, so daß dieses alle beschichteten1. Method for gluing and soldering a honeycomb body (8) wound or layered from layers of structured sheets (1, 2) with many channels (9) permeable to a fluid, characterized by the following features: a) before winding or layering, the structured sheets (1, 2) in the areas (3; 4; 5; 6; 7) to be soldered and soldered later coated with an adhesive or binder; b) the sheets are wound or layered into a honeycomb body (8); c) the wound or layered body (8) is charged with solder powder, so that it is all coated
Stellen (3; 4; 5; 6; 7) erreicht und dort haften bleibt; d) überschüssiges Lotpulver wird aus dem Körper (8) entfernt, vorzugsweise herausgeschüttelt oder -geblasen»Places (3; 4; 5; 6; 7) are reached and remain there; d) Excess solder powder is removed from the body (8), preferably shaken or blown out »
2. Verfahren nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , daß als Kleber ein Haftkleber verwendet wird.2. The method of claim 1, d a d u r c h g e k e n n z e i c h n e t that a pressure sensitive adhesive is used as the adhesive.
3. Verfahren nach Anspruch 2, d a d u r c h g e k e n n z e i c h n e t , daß das Wickeln oder Schichten erfolgt, bevor der Haftkleber vollständig getrocknet ist.3. The method of claim 2, d a d u r c h g e k e n n z e i c h n e t that the winding or layering takes place before the pressure sensitive adhesive is completely dried.
4. Verfahren nach Anspruch 1, 2 oder 3, d a d u r c h g e k e n n z e i c h n e t , daß die strukturierten Bleche (l, 2) streifenweise mit Binder oder Kleber versehen werden, wobei der oder die Streifen senkrecht, parallel oder in einem Winkel zur Struktur der Bleche (1, 2) verläuft (bzw. verlaufen) . 4. The method according to claim 1, 2 or 3, characterized in that the structured sheets (1, 2) are provided in strips with binder or adhesive, the strip or strips perpendicular, parallel or at an angle to the structure of the sheets (1, 2nd ) runs (or run).
5. Verfahren nach einem der vorhergehenden Ansprüche, d a d u r c h g e k e n n z e i c h n e t , daß die strukturierten Bleche (1, 2) zumindest in einer schmalen Zone (3, 4) an einem oder beiden Rändern mit Kleber oder Binder versehen werden, so daß zumindest eine oder beide Stirnseiten des herzustellenden Wabenkörpers (8) Lötverbindungen erhalten.5. The method according to any one of the preceding claims, characterized in that the structured sheets (1, 2) are provided at least in a narrow zone (3, 4) on one or both edges with adhesive or binder, so that at least one or both end faces of the honeycomb body to be produced (8) obtained solder connections.
6. Verfahren nach einem der vorhergehenden Ansprüche, d a d u r c h g e k e n n z e i c h n e t , daß die strukturierten Bleche (1, 2) streifenweise (5) mit Kleber oder Binder versehen werden, und zwar so, daß später im Inneren des herzustellenden Wabenkörpers (8) Lötverbindungen mit Abstand z den Stirnseiten entstehen.6. The method according to any one of the preceding claims, characterized in that the structured sheets (1, 2) are provided in strips (5) with adhesive or binder, in such a way that later in the interior of the honeycomb body to be produced (8) solder connections with a distance z End faces arise.
7. Verfahren nach einem der vorhergehenden Ansprüche, d a d u r c h g e k e n n z e i c h n e t , daß als strukturierte Bleche glatte (1) und gewellte (2) Bleche in abwechselnden Lagen verwendet werden, wobei Kleber oder Binder auf die glatten (1) und/oder auf die gewellten Bleche (2) aufgetragen wird.7. The method according to any one of the preceding claims, characterized in that smooth (1) and corrugated (2) sheets are used in alternating layers as structured sheets, adhesive or binder on the smooth (1) and / or on the corrugated sheets (2nd ) is applied.
8. Verfahren nach Anspruch 7, d a d u r c h g e k e n n z e i c h n e t , daß Kleber oder Binder in den z verlötenden Bereichen nur auf die gewellten Bleche (2) aufgetragen wird, und zwar nur auf die Kuppen der Wellungen (6 7).8. The method of claim 7, d a d u r c h g e k e n n z e i c h n e t that glue or binder in the z soldering areas is only applied to the corrugated sheets (2), and only on the tops of the corrugations (6 7).
9. Vorrichtung zum Auftragen von Kleber oder Binder zur Durchführung des Verfahrens nach einem der vorhergehenden Ansprüche, d a d u r c h g e k e n n z e i c h n e t, daß seitlich neben und/oder über und/oder unter dem Transportweg der strukturierten Bleche (1, 2) schwammartige, mit Kleber oder Binder tränkbare Walzen (11, 12) angeordnet sind, welche die strukturierten Bleche (1, 2) zumindest in Teilbereichen berühren und durch deren Transportbewegung oder durch eigene Antriebsorgane rotierbar sind. 9. Device for applying adhesive or binder for performing the method according to any one of the preceding claims, characterized in that laterally next to and / or above and / or below the transport path of the structured sheets (1, 2) sponge-like, soakable with adhesive or binder rollers (11, 12) are arranged, which touch the structured sheets (1, 2) at least in partial areas and can be rotated by their transport movement or by their own drive elements.
EP89902025A 1988-05-31 1989-02-10 Process for gluing and soldering a metallic catalyst carrier Expired - Lifetime EP0422000B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3818512A DE3818512A1 (en) 1988-05-31 1988-05-31 METHOD FOR GLUING AND SOLDERING A METAL CATALYST SUPPORT BODY AND RELATED DEVICE
DE3818512 1988-05-31
PCT/DE1989/000080 WO1989011938A1 (en) 1988-05-31 1989-02-10 Process and device for gluing and soldering a metallic catalyst carrier

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EP0422000A1 true EP0422000A1 (en) 1991-04-17
EP0422000B1 EP0422000B1 (en) 1994-11-23
EP0422000B2 EP0422000B2 (en) 2001-05-02

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EP (1) EP0422000B2 (en)
JP (1) JP2605154B2 (en)
KR (1) KR0134224B1 (en)
DE (2) DE3818512A1 (en)
RU (1) RU2051014C1 (en)
WO (1) WO1989011938A1 (en)

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KR900701453A (en) 1990-12-03
US20020129890A1 (en) 2002-09-19
EP0422000B2 (en) 2001-05-02
RU2051014C1 (en) 1995-12-27
KR0134224B1 (en) 1998-06-15
JPH03501363A (en) 1991-03-28
EP0422000B1 (en) 1994-11-23
DE58904368D1 (en) 1995-01-05
WO1989011938A1 (en) 1989-12-14
US20010013390A1 (en) 2001-08-16
JP2605154B2 (en) 1997-04-30
DE3818512A1 (en) 1989-12-07

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